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Secondaire 5 • 2a
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Why is this 70 cm with sig figs? I thought it was supposed to be 73 cm... can someone help explain?

Chemistry
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Explications (1)

  • Explication d'Alloprof

    Explication d'Alloprof

    Cette explication a été donnée par un membre de l'équipe d'Alloprof.

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    Équipe Alloprof • 2a

    Hi !

    First, there is a link that I suggest you visit for the theory about significant figures :



    So let us put them in meters first. You will then have the operation as follow :

    $$ 7,5m-6,774m=0,726m=0,7m $$

    You can see now that the answer must have only one significant figure.

    If you have any other questions, feel free to ask them !

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